OAB Server Has Been Deleted

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue.
The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime.
For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]

Topic Last Modified: 2007-03-21

Microsoft Exchange Server 2007 setup cannot continue because its attempt to install the Client Access server role failed. The Exchange Mailbox server designated to host the Offline Address Book (OAB) has been deleted.

Exchange 2007 setup requires that there be a valid Exchange Mailbox server hosting OAB generation for the Client Access server role installation to continue.

To address this issue, designate a valid Exchange Mailbox server as OAB generation host, and then rerun Exchange 2007 setup.

For information about how to designate an Exchange server to be the host for Offline Address Book generation, see "How to Create an Offline Address Book" (http://go.microsoft.com/fwlink/?LinkId=86314) in the Exchange 2007 product documentation.